December weather forecastBern, Switzerland

The leafy landscape, beautiful blue waters, and the city buildings of Bern, Switzerland

December

Weather in December

December in Bern welcomes winter in all its grandeur. With the lowest recorded temperatures in the year, with a high of 3.5°C (38.3°F) and a low of -2.3°C (27.9°F), December truly portrays a winter wonderland. Snowfall returns, adorning the city in a white blanket, while daylight hours shrink to their shortest span. The month offers minimal sunshine, but the festive spirit of the season compensates for it. In all its frostiness, December in Bern presents a setting straight out of a winter fairytale.

Temperature

In Bern, entering December brings a subtle temperature decrement, reducing from November's chilly 7.3°C (45.1°F) to a cold 3.5°C (38.3°F). Bern reports a consistent average low-temperature of -2.3°C (27.9°F) throughout December nights.

Humidity

The months with the highest humidity are November and December, with an average relative humidity of 85%.

Rainfall

In Bern, Switzerland, in December, during 9.9 rainfall days, 74mm (2.91") of precipitation is typically accumulated. In Bern, during the entire year, the rain falls for 124.2 days and collects up to 1059mm (41.69") of precipitation.

Snowfall

January through April, October through December are months with snowfall in Bern. The month with the most snowfall in Bern is December, when snow falls for 3.1 days and typically aggregates up to 133mm (5.24") of snow.

Daylight

December has the shortest days of the year, with an average of 8h and 36min of daylight.
On the first day of the month, sunrise is at 07:55 and sunset at 16:43. On the last day of December, in Bern, Switzerland, sunrise is at 08:15 and sunset at 16:51 CET.

Sunshine

December has the least sunshine of the year in Bern, with an average of 1.6h of sunshine.

UV index

The months with the lowest UV index are January, November and December, with an average maximum UV index of 1. A UV Index estimate of 2, and below, represents a minimal health vulnerability from unsafe exposure to UV radiation for the average person.
Note: In December, a daily maximum UV index of 1 leads to the following instructions:
While extended sun exposure does not significantly affect most people, those with sensitive skin, children, and infants should always be protected. The intensity of the Sun's UV radiation during midday suggests reducing time spent outdoors. In bright sunlight, prioritize sunglasses that grant protection from UVA and UVB radiation. Be aware! The intensity of the Sun's UV radiation can be amplified nearly twice due to snow reflection.

Updated: Jan 24, 2024
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

December temperatures in Bern, Switzerland, vary between a high-temperature of 3.5°C (38.3°F) and a low-temperature of -2.3°C (27.9°F).

The months with the highest humidity in Bern, Switzerland, are November and December, with an average relative humidity of 85%.

In Bern, the average relative humidity in December is 85%.

In Bern, Switzerland, in December, it is raining for 9.9 days, with typically 74mm (2.91") of accumulated precipitation.

December is the month with the most snowfall. Snow falls for 3.1 days and accumulates 133mm (5.24") of snow.

In December, in Bern, Switzerland, it is snowing for 3.1 days. Throughout December, 133mm (5.24") of snow is accumulated.

The month with the shortest days is December, with an average of 8h and 36min of daylight.

In Bern, the average day length in December is 8h and 36min.

In December, on the first day of the month, sunrise is at 07:55 and sunset at 16:43. On the last day of the month, in Bern, Switzerland, sunrise is at 08:15 and sunset at 16:51 CET.

The month with the least sunshine is December, with an average of 1.6h of sunshine.

In December, the average sunshine duration in Bern, Switzerland, is 1.6h.

The months with the lowest UV index are January, November and December, with an average maximum UV index of 1.

The average daily maximum UV index in December is 1. A UV Index value of 2, and less, symbolizes a minimal hazard to health from exposure to Sun's UV rays.

Today

Tomorrow

Long-term

Year J F M A M J J A S O N December

Nov

December

Jan

Average high temperature

7.3°C

3.5°C

2.8°C

Average low temperature

Average humidity

Average rainfall

Average rainfall days

Average snowfall

Average snowfall days

Average daylight

Average sunshine

Average UV index

Average temperature in December
Bern, Switzerland

Average high temperature in December: 3.5°C

The warmest month (with the highest average high temperature) is July (24.3°C).
The month with the lowest average high temperature is January (2.8°C).

Average low temperature in December: -2.3°C

The month with the highest average low temperature is July (12.5°C).
The coldest month (with the lowest average low temperature) is January (-3.6°C).

Average humidity in December
Bern, Switzerland

Average humidity in December: 85%

The months with the highest relative humidity are November and December (85%).
The months with the lowest relative humidity are April, June and July (71%).

Average rainfall in December
Bern, Switzerland

Average rainfall in December: 74mm

The wettest month (with the highest rainfall) is May (119mm).
The driest month (with the least rainfall) is February (55mm).

Average rainfall days in December
Bern, Switzerland

Average rainfall days in December: 9.9 days

The month with the highest number of rainy days is May (12.6 days).
The month with the least rainy days is September (8.9 days).

Average snowfall in December
Bern, Switzerland

Average snowfall in December: 133mm

The month with the highest snowfall is December (133mm).
The months with the least snowfall are May, June, July, August and September (0mm).

Average snowfall days in December
Bern, Switzerland

Average snowfall days in December: 3.1 days

The month with the highest number of snowfall days is January (4.1 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).

Average daylight in December /
Average sunshine in December
Bern, Switzerland

Average daylight in December: 8h and 36min

The month with the longest days is June (Average daylight: 15h and 48min).
The month with the shortest days is December (Average daylight: 8h and 36min).

Average sunshine in December: 1h and 36min

The month with the most sunshine is July (Average sunshine: 7h and 36min).
The month with the least sunshine is December (Average sunshine: 1h and 36min).

Average UV index in December
Bern, Switzerland

Average UV index in December: 1

The months with the highest UV index are June and July (UV index 8).
The months with the lowest UV index are January, November and December (UV index 1).